Premium Steel Forging Round Bars - Normalizing and Annealing Options Available

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Application: Machinery Parts
• Material: Steel
• Heat Treatment: Normalizing
• Forging Tolerance: +/-0.5mm
• Standard: GB
• Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008
• International Standards: ASTM, AISI, DIN, JIS, BS
• Delivery Condition: Quenching+Tempering, Normalizing, Anealing
• Shape: Round Bar, Square, Shaft, Ring, Cylinder
• Delivery Surfaces: Black, Rough Machning Bright, Fine Maching Bright
• Alloy No: 9cr2mo, 18crmimo6, 30Cr2Ni2Mo
• Transport Package: Wooden Cartons
• Specification: Customization
• Trademark: weirun
• Origin: Jiangsu, China
• Production Capacity: 3000 Tons/Month

Product Description

Product Description

Chemical Composition (%):

	C	Si	Mn	P	S	Cr	Mo	Ni	Standard
9Cr2Mo	0.85-0.95	0.25-0.45	0.20-0.35	≤0.025	≤0.025	1.70-2.10	0.20-0.40	≤0.25	GB/T13314-2008
18CrNiMo7-6	0.15-0.21	≤0.4	0.50-0.90	≤0.025	≤0.035	1.50-1.80	0.25-0.35	1.4-1.7	EN 10084-2008
30Cr2Ni2Mo	0.26-0.34	0.17-0.37	0.50-0.80	≤0.020	≤0.020	1.80-2.20	0.30-0.50	1.80-2.20	GB/T3077-2015

Main Products

Company Profile

Jiangsu Weirun Forging Co., Ltd.
Established in 2001, Jiangsu Weirun Forging Co., Ltd. stands as a beacon of innovation and craftsmanship in China's alloy steel smelting and forging industry. This dynamic powerhouse was born from the strategic fusion of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., inheriting a rich legacy as one of the pioneering enterprises in the art of forging. We are committed to excellence, fostering a tradition of relentless innovation and superior craftsmanship.
At the pinnacle of alloy steel smelting, electroslag remelting, and forging, Jiangsu Weirun is also a luminary in mold manufacturing. Our journey of dynamic growth has crafted a comprehensive industrial chain, integrating material recycling, smelting, electroslag casting, forging, and precision machining of molds. Serving both domestic and global markets, we are dedicated to delivering unmatched quality and exceptional service, making an indelible mark on the industry.
Our cutting-edge facility spans 60,000 square meters, equipped with advanced electroslag furnaces featuring three 1-ton, one 3-ton, and a robust 10-ton unit. Our forging operations are powered by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, enhanced by 5 and 8-ton mechanized electro-hydraulic hammer lines. Advanced mechanical processing, heat treatment equipment, spectrometers, and diverse testing devices support our thriving industrial output, boasting a stellar 300 million yuan, backed by fixed assets of 153 million yuan. Our expert team of over 200, including 20 technical specialists, proudly places us among Danyang City's elite in sales and tax contributions.
Charting a course into the future, Jiangsu Weirun has strategically embraced talent acquisition, forging powerful partnerships with leading domestic universities and research institutions to fuel ongoing innovation. Our steadfast dedication to technological progress has garnered us 5 national patents for groundbreaking inventions and 3 utility model patents, underscoring our unwavering commitment to pioneering further development.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, Jiangsu Weirun caters to a wide spectrum of industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the ethos of 'pursuing excellence and building a world brand,' we align with international markets and standards, holding prestigious certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a leading forged products provider, Weirun remains unwavering in delivering unparalleled quality and professional expertise, ensuring an exceptional service experience for our esteemed clientele.

FAQ

• What is the difference between forging and casting?

  Forging: It is the process of transforming a solid from one shape to another. Casting: It is the process of transforming a shapeless liquid metal into a solid with a shape. The so-called casting is the process of casting molten metal into a model to obtain a casting. The casting profession focuses on the metal melting process and the control of processes during the casting process. Forging is a plastic forming process in the solid state, which can be divided into hot processing and cold processing. Forgings include extrusion, drawing, roughening, punching, and so on. Casting is a solid liquid solid process, while forging is a solid to solid process where a solid can change its shape into another shape at high temperatures. There are still differences in the shape process and process of the two.

• How to choose high-quality forgings?

  In the quality inspection of forgings, there are mainly external observation methods and internal inspection methods. The appearance method, as the name suggests, is to observe the appearance of the product, such as the shape, geometric dimensions, surface condition, etc. of the forging, in order to understand whether it meets the standards and whether there are external defects. Specifically, it is to check whether the external dimensions of the forging meet the specifications and whether there are defects on the surface, such as cracks, wrinkles, bubbles, indentations, pits, impurities, scratches, etc. on the surface of the forging. Internal testing mainly involves analyzing the chemical composition, macroscopic and microscopic structures, and mechanical properties of forgings. This inspection process requires the use of specialized instruments for high magnification inspection, with the aim of checking for any phenomena such as fractures and shrinkage within the forging, as well as defects such as dendrites and white spots, disordered flow lines, and throughflow. It also includes the tensile strength, ductility, hardness, plasticity, and heat resistance temperature of the forging.

• What are the characteristics of the forging process for blank forgings?

  The forging process of circular forgings mainly consists of the following processes: pier roughening, elongation, punching, and expanding. The difference between free forging and ring rolling processes is mainly in the process of expanding holes. In the production of ring forgings, free forging is usually used to expand the hole with a horse screw, while ring rolling is mainly used to expand the hole with rolling.